diff options
Diffstat (limited to 'src/AFC.c')
| -rw-r--r-- | src/AFC.c | 57 |
1 files changed, 57 insertions, 0 deletions
@@ -917,6 +917,63 @@ iphone_error_t iphone_afc_close_file(iphone_afc_client_t client, iphone_afc_file return IPHONE_E_SUCCESS; } +/** Locks or unlocks a file on the phone. + * + * makes use of flock, see + * http://developer.apple.com/documentation/Darwin/Reference/ManPages/man2/flock.2.html + * + * operation (same as in sys/file.h on linux): + * + * LOCK_SH 1 // shared lock + * LOCK_EX 2 // exclusive lock + * LOCK_NB 4 // don't block when locking + * LOCK_UN 8 // unlock + * + * @param client The client to close the file with. + * @param file A pointer to an AFCFile struct containing the file handle of the + * file to close. + * @operation the lock or unlock operation to perform. + */ +iphone_error_t iphone_afc_lock_file(iphone_afc_client_t client, iphone_afc_file_t file, int operation) +{ + if (!client || !file) + return IPHONE_E_INVALID_ARG; + char *buffer = malloc(16); + uint32 zero = 0; + int bytes = 0; + uint64_t op = operation; + + afc_lock(client); + + log_debug_msg("afc_lock_file: File handle %i\n", file->filehandle); + + // Send command + memcpy(buffer, &file->filehandle, sizeof(uint32)); + memcpy(buffer + sizeof(uint32), &zero, sizeof(zero)); + memcpy(buffer + 8, &op, 8); + + client->afc_packet->operation = AFC_FILE_LOCK; + client->afc_packet->entire_length = client->afc_packet->this_length = 0; + bytes = dispatch_AFC_packet(client, buffer, 15); + free(buffer); + buffer = NULL; + + if (bytes <= 0) { + afc_unlock(client); + log_debug_msg("fuck\n"); + return IPHONE_E_UNKNOWN_ERROR; + } + // Receive the response + bytes = receive_AFC_data(client, &buffer); + log_debug_msg("%s: receiving response (%d bytes)\n", __func__, bytes); + if (buffer) { + log_debug_buffer(buffer, bytes); + free(buffer); + } + afc_unlock(client); + return IPHONE_E_SUCCESS; +} + /** Seeks to a given position of a pre-opened file on the phone. * * @param client The client to use to seek to the position. |